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Ce-SBA-15六方介孔分子筛的合成与表征
丁志杰; 郭雨; 公旭中; 陈君华
2010
Source Publication硅酸盐学报
Issue02Pages:234-240
Abstract采用浸渍法和沉积-沉淀法对有序六方介孔氧化硅分子筛SBA-15进行铈改性。通过X射线衍射、Fourier红外光谱、透射电镜、N2吸附-脱附、X射线光电子能谱和感应耦合等离子体原子发射光谱等对复合材料Ce-SBA-15的介孔结构、铈元素的含量及其化学态进行了表征。结果表明:以硫酸铈为铈源的沉积-沉淀法即使在小的负载量下,铈元素在载体中的分散性很差;而以醋酸铈为铈源的浸渍法能使铈元素在载体中均匀分散,得到的复合材料保持载体SBA-5高度有序的二维六方孔道结构,未检测到氧化铈晶相峰。以醋酸铈为铈源时,当铈负载量达到10.74%时,浸渍法制备的载体的比表面积为368.3m2/g。分子筛中引入的铈元素主要以正四价态形式存在。
Keyword六方介孔分子筛 铈改性 复合材料 浸渍法 沉积-沉淀法
Indexed ByCSCD
CSCD IDCSCD:3832782
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/9806
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
丁志杰,郭雨,公旭中,等. Ce-SBA-15六方介孔分子筛的合成与表征[J]. 硅酸盐学报,2010(02):234-240.
APA 丁志杰,郭雨,公旭中,&陈君华.(2010).Ce-SBA-15六方介孔分子筛的合成与表征.硅酸盐学报(02),234-240.
MLA 丁志杰,et al."Ce-SBA-15六方介孔分子筛的合成与表征".硅酸盐学报 .02(2010):234-240.
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